Smp Tips - Compaq 108164-003 - ProLiant - 800 Integration Notes

ECG045/1097
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NTEGRATION OTE
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Shared Mode
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In shared mode (the default mode), both NetWare and SMP aware applications use the boot
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processor. This mode should be used when the file server activity does not need priority service
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and the SMP aware application could benefit from more processing power. CPU time is
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distributed on a first come, first served basis. In shared mode, NetWare NLMs running on P0 will
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be more affected than when using dedicated mode.
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NetWare
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. . Priority Mode
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Priority mode is designed for a system containing eight or more processors. The boot processor is
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reserved for NetWare, but if an SMP aware application makes a NetWare call, that call is placed
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at the front of the queue and will be the next request serviced. SMP aware applications do not
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interrupt a NetWare task being serviced, but numerous NetWare requests from SMP aware
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applications queued ahead of other outstanding NetWare requests will slow down their
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processing. Priority mode, more than the other two modes, affects the servicing of NetWare
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NLMs running on P0 the most.
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Standard
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NetWare NLMs
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NetWare
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P0
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SMP Tips

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If you are trying to run an SMP aware application, but the SMP NLMs are not loaded, the
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application may not load. However, some SMP aware applications, such as MSM, will load
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and adapt themselves to the single processor environment.
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At least 64 megabytes of memory is recommended. The minimum requirement is 32
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megabytes. (A minimum of 16 megabytes of main memory for each active processor is
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suggested.)
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All intraNetWare patches should be applied before loading SMP.
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8
SMP Aware
Applications Applications
P0
SMP Aware
Applications
P1
SMP Aware SMP Aware
Applications
P1
P2
P2